1428 x 21000
1428 x 21000 = 29988000
Example of 1428 x 21000 pixels banner dimensions.
1378 x 21050 1388 x 21040 1398 x 21030 1408 x 21020 1418 x 21010
1428 x 20950 1428 x 20960 1428 x 20970 1428 x 20980 1428 x 20990
1428 x 21050 1428 x 21040 1428 x 21030 1428 x 21020 1428 x 21010